【作者】 李东； 张静玲； 王亮明；

【机构】 华南理工大学计算机学院；

【摘要】 <正>1引言目前,XML成为Web上数据表示和数据交换的事实标准,如何有效存储和查询XML数据成为当今数据库界的一个重要研究热点。更多还原

【Abstract】 The index technology is the main way to optimize queries in the database.It becomes an important subject now.The query for XML data is more and more complex.So,it is very necessary to build a new integrate index structure which integrate many different kinds of index structure.The index structure is especially effective for the mixed query,and makes the best use of DTD information to optimize queries.To measure the granularity of quering, the concept of PD(ParseDegree) is also proposed.更多还原